知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

8 records (took 0.013 seconds)

    Use of individual blade control on a propeller or rotor in axial flight for the purpose of aerodynamic braking and power response modulation
    1.
    发明授权
    Use of individual blade control on a propeller or rotor in axial flight for the purpose of aerodynamic braking and power response modulation 有权

    公开(公告)号：US11203423B2

    公开(公告)日：2021-12-21

    申请号：US15996325

    申请日：2018-06-01

    Applicant: Karem Aircraft, Inc.

    Inventor： Abe Karem ,  Benjamin Tigner

    IPC: B64C27/80 ,  B64C29/00 ,  B64C27/72 ,  B64D27/10 ,  B64D27/24

    Abstract: Systems and methods are contemplated for favorably improving flight dynamics of aircraft, including enhanced aerodynamic braking and improved flight maneuverability. Air braking systems selectively position a first set of blades at a negative thrust pitch to product a net negative thrust across first and second sets of blades, while balancing torque of the drive shafts to zero. First and second sets of IBC blades can be driven by the same shaft or torque-linked shafts. Flight maneuver systems operate a powerplant at a high power mode, and dissipate the energy from the high power output by positioning a first set of IBC blades at a low efficiency pitch while maintaining constant thrust. As increased or rapid flight maneuverability is required, the first set of blades is positioned toward a high efficiency pitch to instantly increase thrust to the aircraft without requiring a related increase in energy output from the powerplant.

    USE OF INDIVIDUAL BLADE CONTROL ON A PROPELLER OR ROTOR IN AXIAL FLIGHT FOR THE PURPOSE OF AERODYNAMIC BRAKING AND POWER RESPONSE MODULATION
    2.
    发明申请
    USE OF INDIVIDUAL BLADE CONTROL ON A PROPELLER OR ROTOR IN AXIAL FLIGHT FOR THE PURPOSE OF AERODYNAMIC BRAKING AND POWER RESPONSE MODULATION 审中-公开

    公开(公告)号：US20180346111A1

    公开(公告)日：2018-12-06

    申请号：US15996325

    申请日：2018-06-01

    Applicant: Karem Aircraft, Inc.

    Inventor： Abe Karem ,  Benjamin Tigner

    IPC: B64C27/80 ,  B64C29/00 ,  B64D27/24 ,  B64D27/10 ,  B64C27/72

    Abstract: Systems and methods are contemplated for favorably improving flight dynamics of aircraft, including enhanced aerodynamic braking and improved flight maneuverability. Air braking systems selectively position a first set of blades at a negative thrust pitch to product a net negative thrust across first and second sets of blades, while balancing torque of the drive shafts to zero. First and second sets of IBC blades can be driven by the same shaft or torque-linked shafts. Flight maneuver systems operate a powerplant at a high power mode, and dissipate the energy from the high power output by positioning a first set of IBC blades at a low efficiency pitch while maintaining constant thrust. As increased or rapid flight maneuverability is required, the first set of blades is positioned toward a high efficiency pitch to instantly increase thrust to the aircraft without requiring a related increase in energy output from the powerplant.

    Systems and methods for illumination and observation
    4.
    发明授权
    Systems and methods for illumination and observation 有权

    公开(公告)号：US09871979B2

    公开(公告)日：2018-01-16

    申请号：US13776444

    申请日：2013-02-25

    Applicant: Karem Aircraft, Inc.

    Inventor： Abe Karem ,  Benjamin Tigner

    IPC: H04N5/30 ,  H04N5/225 ,  B64C39/02 ,  B64D47/08

    CPC classification number: H04N5/30 ,  B64C39/02 ,  B64C2201/00 ,  B64C2201/127 ,  B64D47/08 ,  H04N5/225

    Abstract: An aerial surveillance and reconnaissance system includes a gimbal-stabilized ISR imaging sensor with 0.8-1.2 microradian optical resolution, using pulsed ultraviolet laser (0.330-0.380 micrometer wavelength) radiation to illuminate the observed target, and a narrow-band-pass filter at the focal plane detector to remove light at frequencies other than the illuminating frequency. Preferred sensors can be operated in a snapshot mode using intermittent illuminating pulses, with timing of the pulses selected for minimum detectability based on observations made with a lower-resolution sensor, or in a video-mode with illuminating pulses selected to generate full-motion video at operator-selectable frame rates. Some sensor embodiments may further combine the UV system described above with conventional daylight optical and sensor systems, though alternative arrangements could also include an IR sensor as well (either using a common aperture with the UV system or with a separate set of light-gathering optics).

    Systems and Methods for Illumination and Observation
    8.
    发明申请
    Systems and Methods for Illumination and Observation 有权
    照明和观察系统与方法

    公开(公告)号：US20150358556A1

    公开(公告)日：2015-12-10

    申请号：US13776444

    申请日：2013-02-25

    Applicant: KAREM AIRCRAFT, INC.

    Inventor： Abe Karem ,  Benjamin Tigner

    IPC: H04N5/30

    CPC classification number: H04N5/30 ,  B64C39/02 ,  B64C2201/00 ,  B64C2201/127 ,  B64D47/08 ,  H04N5/225

    Abstract: An aerial surveillance and reconnaissance system includes a gimbal-stabilized ISR imaging sensor with 0.8-1.2 microradian optical resolution, using pulsed ultraviolet laser (0.330-0.380 micrometer wavelength) radiation to illuminate the observed target, and a narrow-band-pass filter at the focal plane detector to remove light at frequencies other than the illuminating frequency. Preferred sensors can be operated in a snapshot mode using intermittent illuminating pulses, with timing of the pulses selected for minimum detectability based on observations made with a lower-resolution sensor, or in a video-mode with illuminating pulses selected to generate full-motion video at operator-selectable frame rates. Some sensor embodiments may further combine the UV system described above with conventional daylight optical and sensor systems, though alternative arrangements could also include an IR sensor as well (either using a common aperture with the UV system or with a separate set of light-gathering optics).

    Abstract translation: 空中监视和侦察系统包括使用0.8-1.2微焦距光学分辨率的万向节稳定ISR成像传感器，使用脉冲紫外激光（0.330-0.380微米波长）辐射来照射观察到的目标，以及一个窄带通滤波器 焦平面检测器以除了照明频率以外的频率移除光。 优选的传感器可以使用间歇照明脉冲在快照模式下操作，其中基于用较低分辨率传感器观察到的脉冲被选择用于最小可检测性的定时，或者在具有被选择用于产生全动态视频的照明脉冲的视频模式中 以操作员可选的帧速率。 一些传感器实施例可以进一步将上述UV系统与传统的日光光学和传感器系统组合，尽管替代布置还可以包括IR传感器（或者使用与UV系统的公共孔径或与单独的一组聚光光学器件 ）。

Patent Agency Ranking